Paper-bag machine.



No. 782,948. PATENTED FEB. 21, 1905. E. E. GLAUSSEN & G. F. SMITH. PAPER BAG MACHINE.

APPLICATION FILED NOV. 12, 1900.

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W .t m r u m 1m a a n .Y Z a W o v. .a m Z w IN 2 O V X 0 No. 782,948. PATENTED FEB. 21, 1905. E. E. GLAUSSEN & 0. F. SMITH? PAPER BAG MACHINE.

APPLICATION BLED NOV. 12. 1900.

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N wm .Edu/a rail? CZazzmvn No- 782,948. PATENTED FEB. 21, 1905.

B. E. CLAUSSEN & C. F. SMITH.

PAPER BAG MACHINE.

APPLIOATIOR 11.21) NOV. 12, 1900.

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. PATENTED FEB. 21, 1905. E. E. GLAUSSEN & F. SMITH.

PAPER BAG MACHINE APPLICATION FILED NOV. 12, 1900.

No. 782,948. PATENTED FEB. 21, 1905.

3. E. GLAUSSBN & 0. F. SMITH.

PAPER BAG MACHINE. APPLICATION FILED 110v. 12, 1900.

12 sums-sun a.

No.'782,948. PATENTED FEB. 21, 1905. E. E. GLAUSSEN 850. F. SMITH.

PAPER BAG MACHINE.

APPLICATION FILED NOV. 12, 1900.

12 SHEETS-SHEET 7.

' ldz tn V0120: Err/11 50mm y. m lkizward E. 67a wmvn /zam F. d m z'Z/z 0%144 B Z'lzez 7" J9 PATENTED FEB. 21, 1905. B. E. GLAUSSEN & G. P. SMITH.

PAPER'BAG MACHINE.

APPLICATION FILED NOV.12, 1900.

12 SHEETS-SHEET 8.

In z/cn Z 0 7 0. Eda/grail: Claum'en C zam af mz ik No. 782,948. PATENTED FEB. 21, 1905. E. E. GLAUSSEN & G. F SMITH.

PAPER BAG MACHINE.

APPLICATION IILBD NOV. 12, 1900.

12 SHEETS- SHEET 9.

No. 782,948. PATENTED FEB. 21, 1905. E. E. GLAUSSEN & C. P. SMITH.

PAPER BAG MACHINE.

APPLIQATION FILED NOV.12, 1900 12 SHEETS-SHEET 1 0.

llllllllll'll .No. 7s2,9-4s.- I PATENTED FEB. 21, 1905. E. B. GLAUSSEN & 0. P. SMITH.

PAPER BAG MACHINE.

APPLIGATIQN FILED 110v. 12, 1900.

12 SHEETS-SHEET 11.

i ||llu...., illlllllw UNITED I STATES Patented February 21, 1905.

PATENT OFFICE.

EDIVARD E. CLAUSSEN, OF HARTFORD, AND CHARLES F. SMITH, OF BRIDGEPORT, CONNECTICUT, ASSIGNORS TO THE CONTINENTAL PAPER BAG COMPANY, OF NEW YORK, N. Y., A CORPORATION OF MAINE.

PAPER-BAG MACHINE.

SPECIFICATION forming part of Letters Patent No. 782,948, dated February 21, 1905.

' Ap li ati filed November 12, 1900. Serial No. 36,149.

T 0 (all whom it Wtcty concern:

Be it known that we, EDWARD E. CLAUssEN, a resident of Hartford. in the county of Hartford, and CHARLES F. SMITH, a resident of Bridgeport, in-the county of Fairfield, State of Connecticut, citizens of the United States of America, (and having a post-office address in Hartford and Bridgeport, respectively,) have invented certain new and useful Improvements in Paper-Bag Machines, of which the following is a, specification.

This invention relates to machinery for automatically manufacturing paper bags from tucked-paper tubing, and as herein shown and described is especially adapted to the manufacture of those bags known in commerce as square-bottom paper bags, the same being a bag having a tucked-paper tube, the rightangled triangular inwardly-projecting folds, and the rectangular bottom folded back upon the tube.

The object of this invention is to provide simple, reliable, and rapid means for unfolding the tubular blank and forming the rightangled triangular folds and forming the diamond folds on the bellows-sided tubular blank.

Another object of our invention is to provide means consisting of a striking-off mechanism for severing the tubular blanks from the endless bellows-folded tubing.

Still another object of this invention is to fold the end flaps down upon the baginto its final proportions to complete the same by a simple, reliable, and rapid mechanism.

In order that those skilled in the art to which our invention appertains may more fully understand the nature and construction of the same and may obtain a better knowledge of the several operations required, we will give a detailed description thereof, reference being had to the accompanying drawings, which form a part of this specification, and in which Figure 1 represents a side elevation of the machine, showing the paper-roll as the paper passes through the various stages of being formed into the tucked-paper tube, then severed into blanks by the cutting-off mechanism, converted into the diamond form, and its end flaps cross-folded down upon the bag. whereby the same is completed. Fig. 2 represents a side elevation of the upper part of that which is shown in Fig. 1, the same being drawn on an enlarged scale, the gears being indicated in dash and dot and the right upright removed for sake of clearness. Fig. 3 is a partially sectional plan View taken on the broken line 3 3 of Fig. 2 and in the direction of the arrows. Fig. 1 is a part plan and part sectional view taken on the broken line I 4L and in the direction of the arrows of Fig. 2. Fig. 5 is a side view of the cylinder, represented as a four-bag cylinder, but having only one set of the mechanism for folding certain portions of the bag shown in detail, the other three sets which are omitted being exact duplicates of the one shown. Fig. 6 represents an end view of that which is shown in Fig. 5. Figs. 7 and 8 are respectively a plan and an end view of the diamond-finger mechanism. Fig. 9 is a sectional detail of the side clip, taken on the line 9 9 of Fig. 5 and in the direction of the arrows. Fig. 10 is a sectional end view showing the retainer in detail and taken on the line 10 10 and in the direction of the arrows of Fig. 5. Fig. 11 is a plan view of the mechanism which operates upon the upper part of the tubular blank to fold the diamond and for greater clearness is drawn on an enlarged scale. Fig. 12 is a plan View of the tucker-plate shaft and its cooperating nipper-fingers as shown in Fig. 11. Fig. 13 is a side elevation taken on line 13 13 of that which is shown in Fig. 11. Figs. 14, 15,and 16 represent diagrammatic side elevations of the blank at different stages while the bottomforming mechanism is in operation thereon. Fig. 17 is a right-hand end view of that which is shown in Fig. 13. Fig. 18 is a side elevation showing a part of the nipper-tinger mechanism in detail. Figs. 19 and 20 are respectively a plan and a front elevation of the cutting-ofi' mechanism which severs the blank from the continuous tubing and showing the blade in a position after the same has severed the blank from the tube. Fig. 21 is a plan view similar to Fig. 19, showing the cutting-off bladethrust in front of the tube and returning to its extreme rearward position ready to sever thefollowing blank. Fig. 22 is aside elevation of the secondflap-folder mechanism. Fig. 23 is a front elevation of what is shown in Fig. 22. Fig. 24 is a modilication of the flap-folder mechanism, representing the side view thereof. Fig. 25 is a front elevation of that which is shown in Fig. 24. Fig. 26 represents the mechanism whereby the tucker-plate shaft is oscillated about its center. Fig. 27 represents a sectional side elevation of the float and cutting-off mechanism. Figs. 28 and 29 are enlarged views of the gripper-mechanism, the former showing the same in its inner position and closed upon the tucker-plate and the latter representing it open and drawn back to its outer position. Figs. 30 and 31 are respectively a plan and a side elevation, drawn on an enlarged scale, of the delivery mechanism.

The arrows indicate without further explanation the direction of movement of parts, the position of the various instrumentalities being shown to best advantage irrespective of the relative positions those parts may have to their respective cam-grooves, and the same is true of all parts hereinafter mentioned, it being considered suflicient for the purpose of this description to assume that the cams are properly cut to effect the various operations at the proper times and to the required extent.

In the preferred embodiment of this invention herein shown and described the paper-bag machine comprises in part a suitable base, column, and framework, drawing-roll mechanism for drawing the tucked tube up into the machine, reciprocatory and oscillatory cutting-off mechanism, rotary bottom-forming mechanism embodying oppositely-disposed duplicate tucker-plate and cooperating nip perlinger mechanism, moving for a part of the time with its cooperating cylinder and operating on the upper part of the tubular blank to effectively fold and convert the tubular blank into the diamond form, a continuous revolving cylinder with means for effectively holding the lower ply of the paper tube to the cylinder, an oscillatory second-folder-finger mechanism traveling in a path eccentric with the cylinder, a vibrating delivery-plate mechanism, and mechanism for delivering the completed bag, all substantially as hereinafter described, and more particularly set forth in the claims.

In the following specification, of which the accompanying drawings form a part, similar numerals of reference designate like or equivalent parts wherever found throughout the several views.

The means for supporting the paper-roll and leading the paper to the various printingrolls and converting the same into the tuckedpaper tube and drawing the same into the machine will not be described in this specification, as they form no part of the invention.

For clearness the gears 36, 76, 77, 194, 195, 196, 214, 215, 216, 217, 222, 223, 229, and 230, are shown in dash-and-dot lines; but they are to be understood as having teeth out around their full circumference.

A description will first be given of the general construction and arrangement of each individual section and the mechanism for operating the same, and afterward their combined mode of operation will be described.

The column 30 is adapted to receive the various brackets and the framework of the machine and also to properly support on its top surface the uprights 31 and 32, in which the various shafts of the machine proper are journaled.

Motion is communicated to the machine by the pulley 33 in the direction of the arrow 34, the pulley being fastened on the shaft 35, to which is fastened the gear 36-, meshing into the cylinder-gear 37, which is securely mounted on the cylinder-shaft 38, upon which is also mounted the continuously-rotating traveling folding bed or cylinder 39. The cylinder-gear 37 meshes again into the gear 40, held on the shaft 41, journaled crosswise to the machine in the uprights 31 and 32 and which carries on the right-hand side of the upright 31 the gear 42, engaging the train of gearing 43, 44, 45, and 46, the two latter carrying the drawingrolls which draw the paper tubing into the machine. The gear 43 on the shaft 48 also engages the gear 47 on shaft 49, which support the grhvping-rolls 50 and 51, respectively, which receive the paper tube from the drawing-rolls. On the left hand side of the upright 32 and adjacent to the gear 40 on the shaft 41 is mounted the bevel-gear 52, meshing into the bevel-gear 53, supported on the downward-projecting vertical shaft 54, which is journaled in the bracket and carries the gear 56, which engages the gear 57 journaled on the stud 58, which is supported in the leftward-extending arm 59 of the upright 32. The gear 57 has fastened thereto the crank-pin 60, engagingthe connecting-rod 61, which carries on its inner end the stud 62, which engages the cu ttingofi blade 63, mounted for reciprocatory movement in the arm 64 by any of the well-known methods and preferably in this case by \l-shaped grooves. The arm 64 is pivoted for oscillatory motion on the stud 65, which is rigidly supported in the bracket 66, fastened on the left-hand side to the column 30. On the shaft 54 is also securely mounted the cam 67, which is provided with the groove 68, engaging a pin 69, securely held in a projecting lug 64 of the arm 64. The float 249, which is within the tube, as best shown in Fig. 27, forms the continuation of the former, of well-known construction, having its upper end serrated, against which edge the lower plies of the tube are cut ofi, whereas the upper ply of the tube is forced against the serrated knife 250 by the oscillation of the cutting-01f blade 63. It will be observed (see Fig. 1) that the shaft 54 is vertically disposed and that the center line of the former is at an angle with this vertical shaft, whereby an oblique cut of the striker is effected.

By the means. just described the cutting-01f blade 63 is reciprocated laterally in the arm 64 by the crank-pin 60 in the gear 57, and the arm 64 is caused to be oscillated at the proper time and to the required extent by the camgroove 68, and the timing of that groove is such that when the blade is in its extreme outer position it is caused to be oscillated in the direction of the arrow 70, (see Fig. 19,) whereby the blade sweeps across the path of the tube and severs the same in the wellknown manner. When the blade 63 is in its extreme rearward position, the 'arm 64 is caused to be thrown in the direction of the arrow 71, whereby the blade is passed behind the tube ready to repeat its operation.

As a means for supporting the paper blank onits way onward wehave provided a bracket 7 4, supporting at its outer end the plate 7 5, which is somewhat narrower than the paper tube and whereby the latter is guided onto the circumference of the cylinder. The gear 40 also engages the gear 76, which again meshes with the gear 77, the former being fastened upon the shaft 78 and the latter upon the shaft 79, journaled in the uprights 31 and 32, and which support the conveyer-rolls 80 and 81, respectively, the latter being in the form of a sector, and which carry the tube from the gripping-rolls 50 and 51 to the cylinder and its cooperating tucker-plate, which will now be described.

The cylinder-shaft 38 is journaled on the right-hand side in the sleeve 84, provided on the outside with the flange 84 and having slotted holes for adjustment of the cams carried on that sleeve in either direction, which will be described later. On the left-hand side the cylinder-shaft is journaled in the sleeve 85, having a flange 85,.whereby the same is securely fastened to the upright 32. As a convenient means for carrying and holding thereto the lower ply of the tucked-paper tube we have represented in our invention the cylinder 39, which is securely fastened, as previously described, on the shaft 38 and is rotated thereby. We have shown this as a fourbag cylinder, as it requires a certain space from the point where the bag begins to be folded to the completion and delivery of the same, and have found this to be best adapted to our present arrangement; but it is obvious that a smaller cylinder with less or a larger one with more sets of bag-folding mechanism can be arranged for.

As a means for clamping the lower ply of the tube to the cylinder we have provided the front clip 87, the diamond-fingers 88, and the side clips 89, each of which will now be described, together with the mechanism for operating the same, and for simplicity only one set of folding mechanism will be described.

The cylinder 39 is provided with hubs 90, each of which is adapted to receive a shaft 91, upon which is loosely mounted the-front-clip yoke 92, which is provided with a forwardextending front clip 87, the same being preferably shown divided in two parts, leaving a central space between for the purpose specified later. On the left-handside the frontclip yoke has a downward-projecting extension 93, adapted to engage a cam 94 and whereby the same is opened when in engage ment and closed by the spring 95 pressing against the pin 96. placed on the right-hand side of the front-clip yoke.

The hook-shaped diamond-fingers 88 are pivoted on pivots 97, journaled on projecting hubs of the front-clip yoke, as clearly shown in Fig. 8, and the ends of the diamond-fingers projecting beyond those pivots are adapted to engage arms 98, which are rigidly held upon the shaft 91. On the right-hand side of the machine the shaft 91 supports the cam-arm 99, having aprojection engaging a cam-groove 101 of the cam 102.

By the means just described the front-clip yoke, with its front clip 87, is adapted to be raised from the cylinder by means of the cam 94 and closed by the pressure of the spring 95, thereby clamping and holding the advancing end of the bag-bottom to the cylinder, and the diamond-fingers are thrust into the bag by means of the cam 102 and are again disengaged from the bag when the diamond is completed. The diamond-lingers are hook-shaped, and the defining or working edges of the same are substantially in such location that when in their inner position of adj ustmentthey form an angle of substantially forty-ii ve degrees with the longitudinal median line of the bag-blank, as clearly shown in Fig. 7, which aid and begin the formation of the diamond fold at the exact predetermined points. The cylinder 39 is also provided with a pair of bevel-edged side clips 89 of wellknown construction and best shown in Figs. 5, 6, and 9 and which are mounted on pivots 103 in projecting lugs of the cylinder, the downward-projecting ends of which, 104, are

adapted to engage the cams 105 and whereby the same are opened and held in their open or outward position. The spring 106 tends to close the side clips upon the top surface of the cylinder as soon as the projections 104 disengage the cams 105. The cylinder is also provided with a pair of oppositely-disposed retainers 108, as best shown in Figs. 5, 6, and 10, which lie across the top surface of the cylinder and hold the bag-blank to the cylinder when in their inner position of adjustment, and those retainers are pivoted on pivots 109 in projecting lugs of the cylinder, the lower extensions of those retainers being provided with projections 110, engaging cams 111, whereby the same are thrown into their inner position upon the cylinder when in engagement with those cams. Springs 1 12, resting upon a springplug, tend to press the retainers 108 into their outer position of adjustment as soon as the projection 110 disengages the cam 111. The cylinder is also provided with grooves 113 and 114, cut transversely in the face of the cylinder, the purpose of which will be described later. 7

That portion of the machine which operates upon the upper part of the tucked-paper tube and which cooperates with the folding mechanism on the cylinder just described will now be explained and is shown most clearly in Figs. 2 and 11 to 18, inclusive. As a means for communicating motion to the shaft 117, journaled in bushings 119 and 120 on the uprights 31 and 32 and extending inward from these uprights, we have provided upon that shaft on the outside of the upright 32 the gear 118, nieshinginto the cylinder-gear 37. Fastened upon the shaft 117 between the uprights 31 and 32 is the arm 121, provided with a shaft 122, which carries on the outer side the cam-arm 123, having a projection 124 engaging a groove in the cam 125, securely held on the bushing 120 of the upright 32, and fastened on the inner side of the shaft 122 is the sector 126, which meshes with the sector 127, which forms a part of the frame 128 and which consists principally of the laterally-disposcd framemembcrs 128 and 128", joined by the hub or sleeve 129, which is loosely mounted on the shaft 117.

Mounted in the frame members 128 and 128 for reciprocatory motion is the carrier 130, consisting, chiefly, of the members 130 and 130", which are joined by the flat plates 131, located on each side of the hub 129. On the left-hand side of one of the plates 131 is the rack 132, adapted to engage the sector 133, fastened upon the shaft 134, which is jour. naled in a projecting arm of the frame member 128, and that shaft carries on its outer side the cam-arm 135, havinga projection 136 engaging a groove 137 of the cam 138, rigidly supported on the bushing 119 of the upright 31. In the carrier members 130 and 130 on each side of the shaft 117 are mounted for rotary motion the tucker-plate shafts 139, to which are securely fastened the tuckerplates 140, which are identical in construction, and therefore only one will be described.

It is obvious that by themeans just described the tucker-plate, with its shaft, receives two distinct motions, the iirstbeing a retarding and an accelerating movement in relation to the uniform speed of the cylinder and the second being a radially-reciprocating motion. The retardation of the tucker-plate shaft relative to the uniform speed of the cylinder is to distend the paper tube, and this is effectively accomplished by the tucker-plate being indirectly mounted in the frame members 128 and 128", whose speed is controlled by the cam 125, arm 123, shaft 122, sector 126, and circular rack 129, the latter being a part of the frame member 128". The acceleration of the tucker-plate shaft has nothing to do with the folding of the bag, butsimply to make up for the retardation, and takes place after the tube is drawn off from the tucker-plate. The second motion imparted to the tucker-plate shaft is a radially-reciprocating movement, caused by the irregularity of the cam-groove 137 and its intermediate mechanism, the various successive positions of the tucker-plate shaft 139 relative to the cylinder being clearly indicated in the diagrammatic views of Figs. 14, 15, and 16, Fig. 14 showing the center ofthe tucker-plate shaft with its cooperating tuckerplate just opposite the creasergroove 113, whereas in Fig. 15 the cylinder has traveled at the uniform speed of the machine; but the tucker-plate shaft has been raised away from the surface of the cylinder to allow the tuckerplate to pass underneath the same, and the forward-propelling motion has been retarded to allow the partial folding of the paper blank. In Fig. 16 the tucker-plate shaft has been again brought nearer to the surface of the cylinder and also has been retarded relative to the movement of the cylinder to allow for the complete formation of the diamond. It will also be noticed that while the cylinder travels the distance 141 (indicated on Fig. 14) plus the distance between the grooves 113 and 114 the tucker-plate shaft travels only the distance 141. By this arrangement the tuckerplate shaft travels partially with the cylinder, whereby a greater speed of the machine is obtained compared with all previous mechanisms which have heretofore been applied to bag-machines, where the cooperating mechanism which operates upon the upper ply of the tube remains stationary or only has a movement toward and away from the cylinder, but not in the direction of and with the cylinder, and is also promotive of some of the other superiorities which characterize this machine.-

As a convenient means for oscillating the tucker-plate and the tucker-plate shaft 139 about its center we have provided the gear 142, fastened upon the tucker-plate shaft 139, meshing into the rack 143, which is provided with a U-shaped recess 144, which is engaged by the arm 145, fastened upon the shaft 146, which is journaled in a projecting branch of the frame member 128.

cam-arm 147, having a projection 148, which engages the groove 149 of the cam 138.

By the means just described the tuckerplate shaft is caused to be oscillated about its center from the different positions, as clearly shown in Figs. 14, 15, and 16. For holding On the other end, the shaft 146 is provided with the the uppermost end of the tube to the tuckerplate we have provided the upper end of the tucker-plate with the hook and for clipping and holding the central portion of the upper ply of the paper tube to the tuckerplate we have provided the bevel-edged nipper-fingers and 151, which are oppositelydisposed on pivots 152 and 153 in sleeves 154 and 155, which are adapted to receive a laterally-reciprocatory motion by means of. the grooved flanges in the sleeves 154 and 155 and which are engaged by projections 156 and 157 of the arms 159 and 160, which are supported on pivots 161 and 162 on the outer side of one of the flat plates 131 of the carrier 130. The bevel-edged side nippers 150 and 151 are belllever shaped, as clearly shown in Fig. 12, and one branch of these belllevers projects through slots in the tucker-plate shaft and through the sleeves 154 and 155. Springs 154' and 155' in the sleeves 154 and 155 tend to open the bell-lever-shaped bevel-edged side nippers as they are causedto move laterally outward. The tucker-plate shaft is provided with engagingabutments 163 and 164, against which the bell-lever ends of the bevel-edged side nippers engage as the sleeves 154 and 155 are moved laterally toward each other and brought into their inner position of adjustment, and whereby the bevel-edged side nippers are forced against the springs 154 and 155 down upon the tucker-plate. Springs 165 and 166, resting in one case upon the gear 142 and in the other against the collar, both of which are securely fastened to the tucker-plate shaft 139, force the bevel-edged side nippers into their position of adjustment, whereas the same are opened and release the paper tube from the tucker-plate by the arms 159 and 160. The mechanism for performing this function is as follows: The arms 159 and are provided with connecting-pins 167 and 168 and are disposed at opposite sides of their respective fulcrums and connected by the rod 169. The arms 160 are provided with laterally-extending fingers 170, which are adapted to engage the projecting abutments 171 and 172 of the slide 173, the outer face of which has a rack cut therein engaging the pinion 174, fastened on the shaft 175, the upper end of which has securely fastened thereon the pinion 176, engaging the sector 177, pivoted on the stud 178, which is carried and supported on an extension of the frame member 128. The belllever-shaped arm 179 of the sector 177 is proforced against the springs and 166 laterally outward and release the nipper-fingers from the plate. As previously described, we have indicated the front clip 87 divided, leaving a central space between the same to allow the, hook 140' to come closer to the cylinder to more readily allow the upper ply of the tube to enter under the hook as the blank is advanced. After the diamond is completed on the blank the same is pressed into its final proportions by the ironing-plates 182, which are oppositely disposed on each side of and securely held to the arm 183, carried by the shaft 184, journaled crosswise in the uprights 31 and 32, and which carries on the outer side of the frame 31 the arm (best shown in Figs. 1 and 4) and which has the projection 186 engaging the groove in the cam 187, and the timing of that cam is such that when the diamond form is completed by the folding mechanism of the tucker-plate and nipper-fingers the ironing-plate 182 is brought downward and slightly presses the same into its final pro portions upon the cylinder and the tuckerplate, as clearly shown in Fig. 16. As the diamond-formed blank is now carried onward it passes under the paste-sector 188, secu rel y held on the shaft 197 and which has paste applied thereto from the paste-segment 189, mounted on the shaft 190, which has received its paste from the paste-roll 191 on shaft 192, revolving in the paste-box 193, which is rigidly secured in the upright 31. Gears 194, 195, and 19.6, held, respectively, on the shafts 197, 190, and 192, receive their motion from the cylinder-gear 37 in the well-known manner. The paste-sector 188 is provided with the two transversely-disposed creasers 198 and 199, which cooperate with the creaser-grooves 113 and 114 in the cylinder. The gears 194, 195, and 196 are so timed with relation to the cylinder-gear 37 that the face of the paste-sector 188 is presented to the cylinder four times to each revolution of the cylinder, and in this manner the paste isdeposited upon each diamond-formed blank as it passes under the paste-sector.

The means for folding the rear flap is as follows: The paste-sector 188 has fastened thereto the two creasei blades 198 and 199, their distance apart measured on the circumference of the paste-sector being equal to twice the depth of the tucks of the paper-bag blank, which distance corresponds with that between the transverse creaser-grooves 113 and 114 in the cylinder, and as the blank passes along and while the creaser-blade 199 engages the groove 114 the rear flapis turned up in a line about radial with the center of the cylinder, permitting the folder-finger 200 to get behind the rear flap, as shown in Fig. 2. The folder-finger 200 is carried on the arm 201, which terminates at its lower end in the yoke 202 and 202 on either side of the box 203, which is loosely mounted on the right cylinder-sleeve 84. The branch 202 of the yoke is engaged by the connecting-rod 204, again pivotally engaged by the lever 205, fastened on the shaft 206, which carries adjacent to the outside of the upright 32 the cam-arm 207,having a projection 208 engaging a groove in the cam 209, rigidly supported on and revolving with the shaft 197. Supported and held against rotation on the right cylindersleeve 84 is'a cam 210, which is engaged by the projection 211 of the arm 201, and as the yoke is caused to be carried by the cam 209 over the face of the cylinder the folder-finger 200 is also caused to be brought closer to the face of the cylinder by the engagement of the projection 211 in the cam 210. After the folderh'nger 200 is permitted to pass the creaser 199 the folder-finger is caused to travel slightly faster than the circumferential speed of the cylinder, thereby completely throwing over the flap and also pressing it upon the face of the cylinder.

Asa means for imparting a rotary motion to the delivery mechanism we have provided the train of gears 2 14, 215, 216, and 217, the gears 214 and 216 being respectively mounted on stationary studs 218 and 219 on the outside of the frame 32, whereas the gears 215 and 217 are mounted on shafts 220 and 221, which are journaled for rotation in the uprights 31 and 32. The shaft 220 is provided between the uprights 31 and 32 with the gear 222, which meshes into the gear 223 on the shaft 224, carried in arms 225, supported in the cross-shaft 226, held rigidly in the uprights 31 and 32. 224 are respectively mounted the narrow transferringrolls 227 and 228. Upon the shaft 221 is also fastened the gear 229, meshing into the gear 230, which is fastened upon the shaft 231, which is journaled in the arms 232 and 233, Which are hinged upon the shaft 226. Upon the shaft 220 the delivery-plate 234 is loosely mounted by lugs projecting on either side of the roll 227, the right-hand side of which has a rearward-extending arm 235, terminating in a projection 236, engaging a camgroove in the cam 237, which is held on the shaft 221. By the means just described the (.lelivery-plate 234 is caused to receive a vibratory motion toward and away from the cylinder to permit the free and unobstructed passing of the front clip 87 and the diamondfingers 88, that plate returning quickly enough to catch under the bag-tube delivered into bite of the transferringerolls 227 and 228.

On the shaft 221 is mounted the deliveryroll 247, and on the shaft 231 is mounted the roll 248, which receives and completely presses the bag into its linal proportions as the same is delivered from the transferringrolls 227 and 228.

Journaled in the rear end of the uprights 31 and 32 is the shaft 240, which has securely held thereto the folder-blades 241, and on the Upon the shafts 220 andv outside of the upright 32 the sector 242, engaging the sector 243, pivoted on the stud 244 and having a projection 245 engaging a groove in the cam 246.

In Figs. 24 and 25 we have shown a slight modification of that which is represented in Figs. 22 and 23 in this respect, that the cam- 210 is represented by an eccentric 210, which is securely fastened on the bushings 84.

The operation of the machine is as follows: The roll ofpaper which is to be converted into square-bottom paper bags is mounted at the front end of the machine and the paper passed around the pasting and guide rolls and convert-ed into a continuous tucked-paper tube, which is guided into the bite of thedrawingrolls and having a float of well-known construction inside the same and above the tube a serrated knife, also of well-known construction, and as the blank advancesit is supported by the plate and guided into the bite of the conveyer-rolls and 81. The strikerblade receives a reciprocatory motion by means of the gears 57, the crank-pin 60, and

its connecting-rod 61, and the oscillatory motion by means of the arm 64 and cam-groove 68, and as the cutting-off blade moves across the path of the tube it forces the same against the serrated edges of the float and knife and severs the blank at each oscillation thereof. The length of the tube is determined by the size of the gear 42, which revolves in unison with the cutting-off, folding, pasting, and delivery mechanisnin As the bottom-forming end of the blank advances toward the folding mechanism it enters between the cylinder and tucker-plate, and the lower ply is clamped upon the cylinder by the front clips 87 and the side clips 89, and the diamond-lingers 88 enter into the bag as illustrated in Fig. 7, and the upper ply thereof is caught by the hook 140 of the tucker-plate and held thereto by the side nippers 150 and 151, and as the cylinder is rotated at the uniform speed of the cylinder-gear 37 the tucker-plate is raised away from the cylinder, retarded in its rotary 'motion relative to the rotation of the cylinder, and also caused to be oscillated about the tucker-plate shaft, passing through the stages of unfolding the tucked paper tube into the diamond form, as clearly shown in Figs. 14, 15, and 16. The folding edge of that tuckerplate forms the characteristic primary transverse folding-line across the tubular blank and the side nippers and the cooperating side clips unfold and form the well-known inside triangular folds. .The paste is then applied thereto from the paste-box 193, the roll, paste-segment, and paste-sector, the latter having attached thereto the two creaserblades 1'98 and 199, which engage the transverse creaser-grooves 113 and 114, respectively, and whereby the bag-blank is creased across the diamond-formed blank, preestablishing the location ofthe bottom of the bag,

IIO

, raised from the surface of the cylinder and is immediately backed up by the folder-finger 200, and as the cylinder continues to rotate the folder-finger is caused to travel slightly faster than the circumferential speed of that cylinder and turns the flap over and brings it completely down upon the bottom of the bag by means of the cam 210. As soon as the retainer-fingers 108 have passed the paster 188 they are caused to be thrown inward, holding the bag upon the cylinder, the diamond-fingers 88 meanwhile having been withdrawn and the front clip 87 opened and also the bevel-edged side clips 89 having released their grip on the bag. The folder-blades 241 are then caused to be moved downward, the delivery-plate 23 having been moved out of the way to allow the front clip and diamondfingers to pass and then immediately thrust back to its normal position under the bag, and the latter is then delivered into the bite of the transferring-rolls 227 and, 228 and then propelled onward and flattened out into its linal proportions by the rolls 247 and 248, ready to be dried, packed, and bundled for shipment.

Having thus fully described our invention, we claim and desire to secure by Letters Patent 1. The combination of a pair of drawingrolls for advancing the tube into the machine,

a pair of gripping-rolls for seizing the tube, a pair of serrated knives supported between the drawing-rolls and the gripping-rolls, the cutting-off blade supported between the drawing and gripping rolls, and adapted to pass above the serrated knives, the arm 6 for supporting the cutting-off blade, means for oscillating the arm, and the crank mechanism for reciprocating the cutting-01f blade; all substantially as described.

2. The combination in a cutting-offmechanism in a paper-bag machine, of the arm 64 pivotally supported, the cam for oscillating the same at predetermined intervals, the cuttingoff blade mounted for reciprocation in the arm, the crank mechanism and means for connecting the crank mechanism to the cuttingolf blade; all substantially as described.

3. The combination of the gears 56 and 57, the crank-pin 60 supported in the gear 57 the arm 64 pivotall y supported on the stud 65, the cam 67 for oscillating the arm at predetermined intervals, the cuttingoff blade 63 mounted for reciprocation in the arm, the connecting-rod 61 connecting the crank-pin to the cutting-off blade, as a means for reciprocating the same; all substantially'as described.

4. In a paper-bag machine, the combination of the rotating traveling folding-bed, means for supporting and holdingthe lower ply of the tube thereto, the frame 128, the cam 125 and intermediate mechanism for imparting a variable speed to the frame relative to the cylinder, oppositely-disposed oscillatory tuckerplate shafts mounted in the frame, and means for oscillating those shafts, tucker plates mounted on the tucker-plate shafts and having the defining edges, means for holding the upper ply of the tube to the tucker-plates, means for carrying the tucker-plate shafts away from and toward the traveling foldingbed; all substantially as described, and for the purpose set forth.

5. In a paper-bag machine, the combination of a rotating traveling folding-bed, means for supporting and holding the lower ply of the tube thereto, the frame 128, the cam 125 and intermediate mechanism for imparting a variable speed to the frame relative to that of the traveling folding bed, oppositely disposed tucker-plate shafts mounted in the frame, and means for oscillating those shafts, tuckerplates mounted on the tucker-plate shafts, means for holding the upper ply of the tube to the tucker-plates, the cam-groove 137 and intermediate mechanism for imparting to the tucker-plate shafts a reciprocatory motion toward and away from the traveling foldingbed; all substantially as described, and for the purpose set forth.

6. In a paper-bag machine, the combination of a rotating traveling foldingbed, means for supporting and holding the lower ply of the tube thereto, the frame 128, the cam 125 and intermediate mechanism for imparting a variable speed to the frame relative to the speed of the traveling folding-bed, oppositely-disposed tucker plate shafts mounted in the frame, tucker-plates mounted on the tuckerplate shafts, means for holding the upper ply of the tube to the tucker-plates, the camgroove 137 and intermediate mechanism for imparting to the tucker-plate shafts a reciprocatory motion toward and away from the traveling folding-bed, the cam-groove 1&9 and its intermediate mechanism for imparting an oscillatory motion to the tucker-plate shafts;

all substantially as described.

7. In a paper-bag machine, the combination of a rotating traveling folding-bed, means for supporting and holding the lower ply of the tube thereto, the frame 128, the cam 125 and intermediate mechanism for imparting a variable speed to'the frame relative to that of the traveling folding-bed, oppositely disposed tucker-plate shafts, tucker-plates mounted on the tucker-plate shafts, means for holding the upper ply of the tube to the tucker-plates, the cam-groove 137 and intermediate mechanism for imparting to the tucker-plate shafts a reciprocatory motion toward and away from the traveling folding-bed, the cam-groove 149 and intermediate mechanism for imparting an oscillatory motion to the tucker-plate shafts, the cam 181 for opening the nippers to release the paper-bag blanks; all substantially as described.

8. In a paper-bag machine, the combination of the frame 128 consisting of the frame members 128 and 128" joined by the hub 129, the cam rigidly supported upon the upright 32, connecting means between the cam and the frame for imparting a variable speed to the frame, a carrier having carrier members 130 and 130 joined by plates 131, the camgroove 137, connecting means between the cam-groove and the carrier-frame for imparting an oscillatory motion; all substantially as described.

9. In a paper-bag machine, the combination of the frame 128 consisting of the frame members 128 and 128 joined by the hub 129, the cam 125 rigidly supported upon the upright 32, connecting means between the cam and the frame for imparting a variable speed to that frame, a carrier 130 having carrier members 130 and 130 joined by plates 131, the camgroove 137, connecting means between the cam-groove and the carrier-frame for imparting an oscillatory motion, tuckenplate shafts 139 mounted in the frame members 130 and 130, the cam groove 14:9 and connecting means between the cam-groove 14:9 and the tucker-plate shafts for oscillating the tuckerplate shafts; all substantially as described and for the purpose set forth.

10. In a paper-bag machine, the combination of theframe 128 consisting of the frame members 128 and 128 joined by the hub 129, the cam 125 rigidly supported upon the upright 32, connecting means between the cam and the frame for imparting a variable speed to that frame, a carrier 130 having carrier members 130' and 130" joined by plates 131, the camgroove 137, connecting means between the cam-groove and the frame for imparting an oscillatory motion, tucker-plate shafts v139 mounted in the frame members 130 and 130", the cam-groove 149 and connecting means between the can'i-groove 1 19 and the tuckerplate shafts for oscillating the tucker-plate shafts, the tucker-plates 1 10 mounted upon the tucker-plate shafts139, the nipper-[ingers 150 and 151, the cam 181, connecting means between that cam and the nipper-fingers for releasing the nipper-lingers from the tuckerplate; all substantially as described, and for the purpose specified.

1 1. In a paper-bag machine, the combination of a traveling folding-bed adapted to support a paper-bag blank, the folder-linger arm, the folder-linger rigidly supported in the folderiinger arm and extending laterally over the surface of the folding-bed, means for oscillating the folder-finger, and means for bringing the folderlinger radially toward and away from the surface of the folding-bed; all substantially as described.

12. In a paper-bag machine, the combination of a traveling folding-bed adapted to support a paper-bag blank, the folder-finger arm, the folder-linger rigidly supported in the folder- Iinger arm and extending laterally over the surface of the folding-bed, the cam 209, connecting means between the cam and the folderlinger arm for oscillating the folder-linger at a greater speed than that of the traveling folding-bed, and means for bringing the folderfinger radially toward and away from the surface of the folding-bed; all substantially as described.

13. The combination of a rotati ng traveling folding-bed adapted to support a paper-bag blank, the folder-linger arm pi'votally supported for oscillation adjacent to the side of the traveling folding-bed,the folder-finger rigidly supported in the folder-linger arm and extending laterally across the surface of the folding-bed, the cam 209, connecting means between the cam and the folder-linger arm for oscillating the folder-finger at a greater speed than that of the rotating traveling foldingbed, the cam 210, connecting means between that cam and the folder-finger arm whereby the folding-linger is radially moved toward and away from the surface of the traveling folding-bed to turn over the rear flap of the bag and lay the same down on the partiallycompleted bag; all substantially as described, and for the purpose set forth.

1 1. The combination of a rotating cylinder, front clips 87, and diamond-fingers 88, and side clips 89, mounted on the cylinder and rotating therewith, the delivery-plate adapted to come close to the cylinder, means for oscillating the plate away from the cylinder, to permit the front clip and diamond-lingers to pass and immediately return to its normal position; all substantially as describethand for the purpose set forth.

Signed by us at New York city this 7th day of November, 1900.

EDWARD E. CLAUSSEN. CHARLES F. SMITH.

\Vitnesses: H

Janus 1) KING, H mNRY IRVING. 

